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Electrochemistry test method used for rotary type single-phase flow erosion testing

A test method and electrochemical technology, applied in measurement devices, scientific instruments, weather resistance/light resistance/corrosion resistance, etc., can solve the problems of inability to realize the study of fluid transient characteristics, single test method, and insufficient mechanism.

Inactive Publication Date: 2007-09-26
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] (1) At present, the mechanism of erosion test in my country is not deep enough, and the relevant equipment test takes a long time, and the experimental results are difficult to promote engineering applications
[0007] (2) The test method is single; the erosion test of scholars at home and abroad usually puts the metal specimen into the corrosive medium, by increasing the flow rate or rotating speed, and statically testing the loss of metal by weighing, it is impossible to realize the fluid erosion damage. Study on Transient Characteristics of Critical Value

Method used

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  • Electrochemistry test method used for rotary type single-phase flow erosion testing
  • Electrochemistry test method used for rotary type single-phase flow erosion testing
  • Electrochemistry test method used for rotary type single-phase flow erosion testing

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with drawings and embodiments.

[0030] As shown in Figure 1, the rotary single-phase flow erosion test device includes a working electrode 12, a Lujin capillary 9, a salt bridge 8, a reference electrode 7, an auxiliary electrode 13, a copper ring-carbon brush 4, a potentiostat 11, Industrial computer6. The transmission shaft 2 is equipped with a rotating disk 10, the workpiece to be measured is used as a working electrode, and its outer surface is flush with the inner wall of the upper liquid container 3. The working electrode 12 and the auxiliary electrode 13 coated with a layer of stainless steel or platinum on the side of the rotating disk On the same horizontal plane; the sides of the rotating disc are respectively opened at 0°, 90°, 180°, and 270°, and the wires pass through the holes of 0°, 90°, 180°, and 270° respectively and meet at the rotating disc One end of the central hole of the transmi...

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Abstract

This invention discloses one electrical chemical test method for rotation single phase impulse erosion test, which comprises the following steps: processing the specimen into work electrode fixed onto test device and adjusting work, reference and aid electrode distance and the capacitor top is added with test erosion liquid with 75mm higher than the liquid; in static erosion medium liquid adopting electrical chemical method for anti-erosion till the current reduces to small to make the work electrode surface form even erosion product protection film; starting transducer motor and pre-setting acceleration curve through computer to observe constant level current curve change till there is burst.

Description

technical field [0001] The invention relates to an electrochemical testing method for erosion tests, in particular to an electrochemical testing method applied to rotary single-phase flow erosion tests. Background technique [0002] Fluid pipeline is a special equipment for transporting fluid under certain pressure. It has become one of the five major transportation modes alongside road, railway, water transportation and aviation. Transport of fluid materials. Fluid pipelines are widely used in the national economy, but the erosion failure of the pipeline system by corrosive multiphase flow is obviously localized and sudden, and the safety risk is great. [0003] Corrosion of pipelines will not only cause oil and gas leakage loss due to perforation and waste of materials and manpower due to maintenance, but may also cause fire due to corrosion perforation. Especially for high-pressure gas pipelines, once they rupture, the compressed gas expands rapidly, releasing a large a...

Claims

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Application Information

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IPC IPC(8): G01N17/02
Inventor 偶国富许根富梁灵鹏
Owner ZHEJIANG SCI-TECH UNIV
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